Results 71 to 80 of about 1,812,452 (281)

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter, Felix Drechsler, Till M. J. Stadtmüller, Cameliu Himcinschi, Christos G. Aneziris, Jens Kortus   +5 more
wiley   +1 more source

The Feasibility of Reclaiming Shell Material from Investment Casting [PDF]

, 1992
This report examines the feasibility of investment shell component reclamation. Shell material components and their compositions are investigated with an industry survey, a study of the available literature, and analysis of specimen shell materials ...
Peters, Timothy M., Twarog, Daniel L.
core  

The off-shell electromagnetic form factors of pions and kaons in chiral perturbation theory

, 1994
The off-shell electromagnetic vertex of a (pseudo-) scalar particle contains, in general, two form factors F and G which depend, in addition to the squared momentum transfer, on the invariant masses associated with the initial and final legs of the ...
C. Itzykson, D. Ebert, D. Espriu, D. O. Riska, G. Barton, H. W. Fearing, H. W. L. Naus, H. W. L. Naus, Howard Georgi, J. C. Ward, J. D. Bjorken, J. Gasser, J. Gasser, J. Gasser, J. W. Bos, Janos Balog, Johan Bijnens, K. Nishijima, Koichi Ohta, M. Bincer, P. C. Tiemeijer, R. Haag, S. Coleman, S. Kamefuchi, S. Scherer, S. Weinberg, T. E. Rudy, T. P. Cheng, X. Song, Y. Takahashi   +29 more
core   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Hamiltonian spacetime dynamics with a spherical null-dust shell [PDF]

, 1997
We consider the Hamiltonian dynamics of spherically symmetric Einstein gravity with a thin null-dust shell, under boundary conditions that fix the evolution of the spatial hypersurfaces at the two asymptotically flat infinities of a Kruskal-like manifold.
Friedman, John L., Louko, Jorma, Whiting, Bernard F.   +2 more
core   +4 more sources

Robust Performance of Sub‐Thermophilic Anaerobic Digestion Enabled by Microbial Functional Redundancy

Advanced Energy & Sustainability Research
Global demand for renewable energy continues to rise, highlighting the importance of renewable natural gas asa sustainable alternative to fossil fuels.
Richard K. Tennant, Olukayode Kuloyo, Andrew G. Moody, Jose R. Lopez, Ashley V. Baugh, Jason R. Jiminez, Gabrielle R. Joslin, Damian J. Allen, Phillip G. Hamilton, David A. Parker, Jeffrey R. Fedenko   +10 more
doaj   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Shell-model calculations for p-shell hypernuclei

, 2012
The interpretation of hypernuclear gamma-ray data for p-shell hypernuclei in terms of shell-model calculations that include the coupling of Lambda- and Sigma-hypernuclear states is briefly reviewed.
Agnello, Akaishi, Auerbach, Bejidian, Bohm, Chrien, Cohen, Cusanno, Cusanno, D.J. Millener, Dalitz, Dalitz, Davis, Davis, Davis, Donnelly, Elliott, Gal, Gal, Gal, Hashimoto, Liu, Ma, Majling, Majling, Marcucci, Millener, Millener, Millener, Millener, Miwa, Motoba, Rijken, Sotona, Tamura, Tamura, Tamura, Ukai, Ukai, Ukai, Umeya, Zieminska, Žofka   +42 more
core   +1 more source

Sol–Gel Derived Polymer Precursors for Stereolithography of ZrC

Advanced Engineering Materials, EarlyView.
ZrC is a critical material target for extreme temperature conditions. This report describes a protocol for preparing ZrC ceramics via stereolithography and examines the impact of the polymer matrix on carbothermal reduction and mechanical stability of 3D printed ZrC.
Charles J. Rafalko, Evelyn Wang, Michael A. Hickner   +2 more
wiley   +1 more source

Equilibrium Bank Runs [PDF]

We analyze a banking system in which the class of feasible deposit contracts, or mechanisms, is broad. The mechanisms must satisfy a sequential service constraint, but partial or full suspension of convertibility is allowed.
Peck, James, Shell, Karl
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